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First results are during `dd if=/dev/sda of=/dev/null bs=4M count=10k iflag=direct` | |
Second results are during `dd if=/dev/sda of=/dev/null bs=4M count=10k` | |
Results are from `atopsar -d 5` | |
12:48:41 disk busy read/s KB/read writ/s KB/writ avque avserv _dsk_ | |
12:53:06 sda 26% 306.6 512.1 0.6 4.0 18.7 0.84 ms | |
12:53:11 sda 25% 310.4 511.9 0.2 4.0 18.8 0.82 ms | |
12:53:16 sda 25% 310.9 512.0 0.0 0.0 18.9 0.81 ms | |
12:54:06 sda 28% 159.8 1007.3 0.0 0.0 6.7 1.72 ms | |
12:54:11 sda 26% 153.3 1023.3 0.6 5.3 7.1 1.68 ms | |
12:54:16 sda 28% 157.1 1015.2 0.0 0.0 6.5 1.78 ms | |
12:54:21 sda 27% 155.7 1024.3 0.0 0.0 6.8 1.71 ms |
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$ sudo dd if=/dev/sda of=/dev/null bs=1M count=10k iflag=direct # in a background terminal | |
$ sudo iotop -d 5 | |
Total DISK READ : 154.65 M/s | Total DISK WRITE : 0.00 B/s | |
Actual DISK READ: 154.65 M/s | Actual DISK WRITE: 812.12 B/s | |
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND | |
7398 be/4 root 154.65 M/s 0.00 B/s 0.00 % 97.75 % dd if=/de~lag=direct | |
1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % systemd -~rialize 32 | |
2 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthreadd] | |
3 be/0 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rcu_gp] | |
... |
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$ sudo parted --list | |
Model: ATA WDC WD5000LPLX-7 (scsi) | |
Disk /dev/sda: 500GB | |
Sector size (logical/physical): 512B/4096B | |
Partition Table: gpt | |
Disk Flags: | |
Number Start End Size File system Name Flags | |
1 1049kB 525MB 524MB fat32 EFI System Partition boot, esp | |
2 525MB 660MB 134MB Microsoft reserved partition msftres | |
3 660MB 54.9GB 54.2GB ntfs msftdata | |
6 54.9GB 56.0GB 1074MB ext4 | |
7 56.0GB 455GB 399GB lvm | |
4 491GB 492GB 472MB ntfs hidden, diag | |
5 492GB 500GB 8191MB ntfs hidden, diag |
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$ sudo lshw | |
alan-laptop | |
description: Laptop | |
product: Latitude E5450 (062B) | |
vendor: Dell Inc. | |
serial: G4F9J72 | |
width: 64 bits | |
capabilities: smbios-2.8 dmi-2.8 smp vsyscall32 | |
configuration: administrator_password=disabled boot=normal chassis=laptop frontpanel_password=disabled keyboard_password=disabled power-on_password=disabled sku=062B uuid=44454C4C-3400-1046-8039-C7C04F4A3732 | |
*-core | |
description: Motherboard | |
product: 0C7K68 | |
vendor: Dell Inc. | |
physical id: 0 | |
version: A06 | |
serial: /G4F9J72/CN1296355D002F/ | |
*-firmware | |
description: BIOS | |
vendor: Dell Inc. | |
physical id: 0 | |
version: A15 | |
date: 05/09/2017 | |
size: 64KiB | |
capacity: 12MiB | |
capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi | |
*-cpu | |
description: CPU | |
product: Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz | |
vendor: Intel Corp. | |
physical id: 4d | |
bus info: cpu@0 | |
version: Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz | |
serial: NULL | |
slot: SOCKET 0 | |
size: 2393MHz | |
capacity: 2900MHz | |
width: 64 bits | |
clock: 100MHz | |
capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap intel_pt xsaveopt dtherm ida arat pln pts flush_l1d cpufreq | |
configuration: cores=2 enabledcores=2 threads=4 | |
*-cache:0 | |
description: L1 cache | |
physical id: 3e | |
slot: L1 Cache | |
size: 32KiB | |
capacity: 32KiB | |
capabilities: synchronous internal write-back instruction | |
configuration: level=1 | |
*-cache:1 | |
description: L2 cache | |
physical id: 43 | |
slot: L2 Cache | |
size: 256KiB | |
capacity: 256KiB | |
capabilities: synchronous internal write-back unified | |
configuration: level=2 | |
*-cache:2 | |
description: L3 cache | |
physical id: 48 | |
slot: L3 Cache | |
size: 3MiB | |
capacity: 3MiB | |
capabilities: synchronous internal write-back unified | |
configuration: level=3 | |
*-cache | |
description: L1 cache | |
physical id: 39 | |
slot: L1 Cache | |
size: 32KiB | |
capacity: 32KiB | |
capabilities: synchronous internal write-back data | |
configuration: level=1 | |
*-memory | |
description: System Memory | |
physical id: 52 | |
slot: System board or motherboard | |
size: 8GiB | |
*-bank:0 | |
description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns) | |
product: HMT41GS6BFR8A-PB | |
vendor: Hynix/Hyundai | |
physical id: 0 | |
serial: 9BADED81 | |
slot: DIMM A | |
size: 8GiB | |
width: 64 bits | |
clock: 1600MHz (0.6ns) | |
*-bank:1 | |
description: DIMM [empty] | |
physical id: 1 | |
slot: DIMM B | |
*-pci | |
description: Host bridge | |
product: Broadwell-U Host Bridge -OPI | |
vendor: Intel Corporation | |
physical id: 100 | |
bus info: pci@0000:00:00.0 | |
version: 09 | |
width: 32 bits | |
clock: 33MHz | |
configuration: driver=bdw_uncore | |
resources: irq:0 | |
*-display | |
description: VGA compatible controller | |
product: HD Graphics 5500 | |
vendor: Intel Corporation | |
physical id: 2 | |
bus info: pci@0000:00:02.0 | |
version: 09 | |
width: 64 bits | |
clock: 33MHz | |
capabilities: msi pm vga_controller bus_master cap_list rom | |
configuration: driver=i915 latency=0 | |
resources: irq:49 memory:f6000000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64) memory:c0000-dffff | |
*-multimedia:0 | |
description: Audio device | |
product: Broadwell-U Audio Controller | |
vendor: Intel Corporation | |
physical id: 3 | |
bus info: pci@0000:00:03.0 | |
version: 09 | |
width: 64 bits | |
clock: 33MHz | |
capabilities: pm msi pciexpress bus_master cap_list | |
configuration: driver=snd_hda_intel latency=0 | |
resources: irq:53 memory:f723c000-f723ffff | |
*-generic | |
description: Signal processing controller | |
product: Broadwell-U Processor Thermal Subsystem | |
vendor: Intel Corporation | |
physical id: 4 | |
bus info: pci@0000:00:04.0 | |
version: 09 | |
width: 64 bits | |
clock: 33MHz | |
capabilities: msi pm cap_list | |
configuration: driver=proc_thermal latency=0 | |
resources: irq:16 memory:f7230000-f7237fff | |
*-usb:0 | |
description: USB controller | |
product: Wildcat Point-LP USB xHCI Controller | |
vendor: Intel Corporation | |
physical id: 14 | |
bus info: pci@0000:00:14.0 | |
version: 03 | |
width: 64 bits | |
clock: 33MHz | |
capabilities: pm msi xhci bus_master cap_list | |
configuration: driver=xhci_hcd latency=0 | |
resources: irq:47 memory:f7220000-f722ffff | |
*-usbhost:0 | |
product: xHCI Host Controller | |
vendor: Linux 5.0.9-200.fc29.x86_64 xhci-hcd | |
physical id: 0 | |
bus info: usb@2 | |
logical name: usb2 | |
version: 5.00 | |
capabilities: usb-2.00 | |
configuration: driver=hub slots=11 speed=480Mbit/s | |
*-usb DISABLED | |
description: Ethernet interface | |
product: Dell Wireless 5809e Gobi | |
vendor: Sierra Wireless, Incorporated | |
physical id: 8 | |
bus info: usb@2:8 | |
logical name: wwp0s20u8c2i12 | |
version: 0.06 | |
serial: 82:5d:a0:c4:d0:be | |
capabilities: usb-2.00 ethernet physical | |
configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no maxpower=500mA multicast=yes speed=480Mbit/s | |
*-usbhost:1 | |
product: xHCI Host Controller | |
vendor: Linux 5.0.9-200.fc29.x86_64 xhci-hcd | |
physical id: 1 | |
bus info: usb@3 | |
logical name: usb3 | |
version: 5.00 | |
capabilities: usb-3.00 | |
configuration: driver=hub slots=4 speed=5000Mbit/s | |
*-communication | |
description: Communication controller | |
product: Wildcat Point-LP MEI Controller #1 | |
vendor: Intel Corporation | |
physical id: 16 | |
bus info: pci@0000:00:16.0 | |
version: 03 | |
width: 64 bits | |
clock: 33MHz | |
capabilities: pm msi bus_master cap_list | |
configuration: driver=mei_me latency=0 | |
resources: irq:46 memory:f7246000-f724601f | |
*-network | |
description: Ethernet interface | |
product: Ethernet Connection (3) I218-LM | |
vendor: Intel Corporation | |
physical id: 19 | |
bus info: pci@0000:00:19.0 | |
logical name: eno1 | |
version: 03 | |
serial: 34:e6:d7:6b:a7:56 | |
capacity: 1Gbit/s | |
width: 32 bits | |
clock: 33MHz | |
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation | |
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.2-3 latency=0 link=no multicast=yes port=twisted pair | |
resources: irq:52 memory:f7200000-f721ffff memory:f7243000-f7243fff ioport:f080(size=32) | |
*-multimedia:1 | |
description: Audio device | |
product: Wildcat Point-LP High Definition Audio Controller | |
vendor: Intel Corporation | |
physical id: 1b | |
bus info: pci@0000:00:1b.0 | |
version: 03 | |
width: 64 bits | |
clock: 33MHz | |
capabilities: pm msi bus_master cap_list | |
configuration: driver=snd_hda_intel latency=32 | |
resources: irq:50 memory:f7238000-f723bfff | |
*-pci:0 | |
description: PCI bridge | |
product: Wildcat Point-LP PCI Express Root Port #1 | |
vendor: Intel Corporation | |
physical id: 1c | |
bus info: pci@0000:00:1c.0 | |
version: e3 | |
width: 32 bits | |
clock: 33MHz | |
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list | |
configuration: driver=pcieport | |
resources: irq:42 ioport:2000(size=4096) memory:f7100000-f71fffff ioport:df800000(size=2097152) | |
*-generic | |
description: SD Host controller | |
product: SD/MMC Card Reader Controller | |
vendor: O2 Micro, Inc. | |
physical id: 0 | |
bus info: pci@0000:01:00.0 | |
version: 01 | |
width: 32 bits | |
clock: 33MHz | |
capabilities: pm msi pciexpress bus_master cap_list | |
configuration: driver=sdhci-pci latency=0 | |
resources: irq:48 memory:f7101000-f7101fff memory:f7100000-f71007ff | |
*-pci:1 | |
description: PCI bridge | |
product: Wildcat Point-LP PCI Express Root Port #4 | |
vendor: Intel Corporation | |
physical id: 1c.3 | |
bus info: pci@0000:00:1c.3 | |
version: e3 | |
width: 32 bits | |
clock: 33MHz | |
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list | |
configuration: driver=pcieport | |
resources: irq:43 ioport:3000(size=4096) memory:f7000000-f70fffff ioport:dfa00000(size=2097152) | |
*-network | |
description: Wireless interface | |
product: Wireless 7265 | |
vendor: Intel Corporation | |
physical id: 0 | |
bus info: pci@0000:02:00.0 | |
logical name: wlp2s0 | |
version: 59 | |
serial: 10:02:b5:4d:e4:0f | |
width: 64 bits | |
clock: 33MHz | |
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless | |
configuration: broadcast=yes driver=iwlwifi driverversion=5.0.9-200.fc29.x86_64 firmware=29.1044073957.0 ip=172.16.8.139 latency=0 link=yes multicast=yes wireless=IEEE 802.11 | |
resources: irq:51 memory:f7000000-f7001fff | |
*-pci:2 | |
description: PCI bridge | |
product: Wildcat Point-LP PCI Express Root Port #5 | |
vendor: Intel Corporation | |
physical id: 1c.4 | |
bus info: pci@0000:00:1c.4 | |
version: e3 | |
width: 32 bits | |
clock: 33MHz | |
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list | |
configuration: driver=pcieport | |
resources: irq:44 ioport:4000(size=4096) memory:dfc00000-dfdfffff ioport:dfe00000(size=2097152) | |
*-usb:1 | |
description: USB controller | |
product: Wildcat Point-LP USB EHCI Controller | |
vendor: Intel Corporation | |
physical id: 1d | |
bus info: pci@0000:00:1d.0 | |
version: 03 | |
width: 32 bits | |
clock: 33MHz | |
capabilities: pm debug ehci bus_master cap_list | |
configuration: driver=ehci-pci latency=0 | |
resources: irq:21 memory:f7242000-f72423ff | |
*-usbhost | |
product: EHCI Host Controller | |
vendor: Linux 5.0.9-200.fc29.x86_64 ehci_hcd | |
physical id: 1 | |
bus info: usb@1 | |
logical name: usb1 | |
version: 5.00 | |
capabilities: usb-2.00 | |
configuration: driver=hub slots=3 speed=480Mbit/s | |
*-usb | |
description: USB hub | |
vendor: Intel Corp. | |
physical id: 1 | |
bus info: usb@1:1 | |
version: 0.03 | |
capabilities: usb-2.00 | |
configuration: driver=hub slots=8 speed=480Mbit/s | |
*-usb:0 | |
description: Bluetooth wireless interface | |
vendor: Intel Corp. | |
physical id: 3 | |
bus info: usb@1:1.3 | |
version: 0.01 | |
capabilities: bluetooth usb-2.01 | |
configuration: driver=btusb maxpower=100mA speed=12Mbit/s | |
*-usb:1 | |
description: Video | |
product: Integrated_Webcam_HD | |
vendor: CN0FHKK7724875CBCVGDA00 | |
physical id: 6 | |
bus info: usb@1:1.6 | |
version: 47.02 | |
capabilities: usb-2.00 | |
configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s | |
*-usb:2 UNCLAIMED | |
description: Generic USB device | |
product: 5880 | |
vendor: Broadcom Corp | |
physical id: 7 | |
bus info: usb@1:1.7 | |
version: 1.01 | |
serial: 0123456789ABCD | |
capabilities: usb-1.10 | |
configuration: maxpower=100mA speed=12Mbit/s | |
*-isa | |
description: ISA bridge | |
product: Wildcat Point-LP LPC Controller | |
vendor: Intel Corporation | |
physical id: 1f | |
bus info: pci@0000:00:1f.0 | |
version: 03 | |
width: 32 bits | |
clock: 33MHz | |
capabilities: isa bus_master cap_list | |
configuration: driver=lpc_ich latency=0 | |
resources: irq:0 | |
*-raid | |
description: RAID bus controller | |
product: 82801 Mobile SATA Controller [RAID mode] | |
vendor: Intel Corporation | |
physical id: 1f.2 | |
bus info: pci@0000:00:1f.2 | |
logical name: scsi1 | |
version: 03 | |
width: 32 bits | |
clock: 66MHz | |
capabilities: raid msi pm bus_master cap_list emulated | |
configuration: driver=ahci latency=0 | |
resources: irq:45 ioport:f0d0(size=8) ioport:f0c0(size=4) ioport:f0b0(size=8) ioport:f0a0(size=4) ioport:f060(size=32) memory:f7241000-f72417ff | |
*-disk | |
description: ATA Disk | |
product: WDC WD5000LPLX-7 | |
vendor: Western Digital | |
physical id: 0.0.0 | |
bus info: scsi@1:0.0.0 | |
logical name: /dev/sda | |
version: 1A01 | |
serial: WX71A958AN1Y | |
size: 465GiB (500GB) | |
capabilities: gpt-1.00 partitioned partitioned:gpt | |
configuration: ansiversion=5 guid=ac3250de-49de-4ef2-9239-0d1a29531a08 logicalsectorsize=512 sectorsize=4096 | |
*-volume:0 | |
description: Windows FAT volume | |
vendor: MSDOS5.0 | |
physical id: 1 | |
bus info: scsi@1:0.0.0,1 | |
logical name: /dev/sda1 | |
logical name: /boot/efi | |
version: FAT32 | |
serial: b895-2186 | |
size: 495MiB | |
capacity: 499MiB | |
capabilities: boot fat initialized | |
configuration: FATs=2 filesystem=fat label=ESP mount.fstype=vfat mount.options=rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=winnt,errors=remount-ro name=EFI System Partition state=mounted | |
*-volume:1 | |
description: reserved partition | |
vendor: Windows | |
physical id: 2 | |
bus info: scsi@1:0.0.0,2 | |
logical name: /dev/sda2 | |
serial: ab57d50f-2196-4791-9b30-36ddc8179a89 | |
capacity: 127MiB | |
capabilities: nofs | |
configuration: name=Microsoft reserved partition | |
*-volume:2 | |
description: Windows NTFS volume | |
vendor: Windows | |
physical id: 3 | |
bus info: scsi@1:0.0.0,3 | |
logical name: /dev/sda3 | |
version: 3.1 | |
serial: 98c9bd83-acee-0e46-87cb-5d39458866e4 | |
size: 50GiB | |
capacity: 50GiB | |
capabilities: ntfs initialized | |
configuration: clustersize=4096 created=2016-12-29 03:00:57 filesystem=ntfs label=OS state=dirty | |
*-volume:3 | |
description: Windows NTFS volume | |
vendor: Windows | |
physical id: 4 | |
bus info: scsi@1:0.0.0,4 | |
logical name: /dev/sda4 | |
version: 3.1 | |
serial: 96d8-012e | |
size: 443MiB | |
capacity: 449MiB | |
capabilities: boot precious ntfs initialized | |
configuration: clustersize=4096 created=2016-10-18 11:39:02 filesystem=ntfs label=WINRETOOLS state=clean | |
*-volume:4 | |
description: Windows NTFS volume | |
vendor: Windows | |
physical id: 5 | |
bus info: scsi@1:0.0.0,5 | |
logical name: /dev/sda5 | |
version: 3.1 | |
serial: 88d8-b909 | |
size: 7803MiB | |
capacity: 7811MiB | |
capabilities: boot precious ntfs initialized | |
configuration: clustersize=4096 created=2016-10-18 11:39:04 filesystem=ntfs label=Image state=clean | |
*-volume:5 | |
description: EXT4 volume | |
vendor: Linux | |
physical id: 6 | |
bus info: scsi@1:0.0.0,6 | |
logical name: /dev/sda6 | |
logical name: /boot | |
version: 1.0 | |
serial: b5cef7d1-5d8c-4a12-8316-5ee679fff416 | |
size: 1GiB | |
capabilities: journaled extended_attributes large_files huge_files dir_nlink recover 64bit extents ext4 ext2 initialized | |
configuration: created=2016-12-30 18:44:10 filesystem=ext4 lastmountpoint=/boot modified=2019-05-04 16:13:43 mount.fstype=ext4 mount.options=rw,seclabel,relatime mounted=2019-05-02 08:24:16 state=mounted | |
*-volume:6 | |
description: LVM Physical Volume | |
vendor: Linux | |
physical id: 7 | |
bus info: scsi@1:0.0.0,7 | |
logical name: /dev/sda7 | |
serial: DlZ1Co-rz28-Scjf-eK4h-wk0e-dgSy-e1kkVL | |
size: 167GiB | |
capacity: 371GiB | |
capabilities: multi lvm2 | |
*-serial UNCLAIMED | |
description: SMBus | |
product: Wildcat Point-LP SMBus Controller | |
vendor: Intel Corporation | |
physical id: 1f.3 | |
bus info: pci@0000:00:1f.3 | |
version: 03 | |
width: 64 bits | |
clock: 33MHz | |
configuration: latency=0 | |
resources: memory:f7240000-f72400ff ioport:f040(size=32) | |
*-pnp00:00 | |
product: PnP device PNP0c02 | |
physical id: 1 | |
capabilities: pnp | |
configuration: driver=system | |
*-pnp00:01 | |
product: PnP device PNP0b00 | |
physical id: 2 | |
capabilities: pnp | |
configuration: driver=rtc_cmos | |
*-pnp00:02 | |
product: PnP device INT3f0d | |
vendor: Interphase Corporation | |
physical id: 3 | |
capabilities: pnp | |
configuration: driver=system | |
*-pnp00:03 | |
product: PnP device PNP0303 | |
physical id: 4 | |
capabilities: pnp | |
configuration: driver=i8042 kbd | |
*-pnp00:04 | |
product: PnP device DLL062b | |
vendor: Dell Inc | |
physical id: 5 | |
capabilities: pnp | |
configuration: driver=i8042 aux | |
*-pnp00:05 | |
product: PnP device PNP0401 | |
physical id: 6 | |
capabilities: pnp | |
*-pnp00:06 | |
product: PnP device PNP0c02 | |
physical id: 7 | |
capabilities: pnp | |
configuration: driver=system | |
*-pnp00:07 | |
product: PnP device PNP0c02 | |
physical id: 8 | |
capabilities: pnp | |
configuration: driver=system | |
*-battery | |
product: DELL 7FR5JD9 | |
vendor: Samsung SDI | |
physical id: 1 | |
version: 01/13/2016 | |
serial: 82F5 | |
slot: Sys. Battery Bay | |
capacity: 51680mWh | |
configuration: voltage=7.6V | |
*-network:0 | |
description: Ethernet interface | |
physical id: 2 | |
logical name: virbr0 | |
serial: 52:54:00:5b:3f:94 | |
capabilities: ethernet physical | |
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=192.168.122.1 link=no multicast=yes | |
*-network:1 DISABLED | |
description: Ethernet interface | |
physical id: 3 | |
logical name: virbr0-nic | |
serial: 52:54:00:5b:3f:94 | |
size: 10Mbit/s | |
capabilities: ethernet physical | |
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s |
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